Improved open or middle ring



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BENJAMIN FZINN, OF MOUNT' ROCK, PENNSYLVANIA. Y LcttersePatentNo.'84,155, dated Novembezl 17, 1868.

IMPROVED OPEN OR IVIIDDLE RING.

*HOV-9 I The Schedule referred to in these Letters Patent and makingpart c! the same.

To all whom it 'may conce/rn Be it known that I, BENJAMIN F. ZINN, ofMount ltock, Cumberland county, Pennsylvania, have invented a new anduseful-Improvement in Open or Middle Rings; and I do hereby declare thatthe following is a full, clear, and exact description of theconstruction and operation ofthe saine, reference being `had to theannexed drawings, making a part of this specification, in which- .Figurel is a perspective view of the ring when closed; Figure 2 is aperspective view of the ring when open.

Figures 3 and tare perspective views of the several parts of the ringwhen separated.

I construct the part A A of an oval or circular shape, and with thetrapezoidal aperture C in the one side thereof, and the extension D, ofa similar shape and size, on the opposite side.

I construct the part -B B of a shape precisely siniilar to and of such asize that it will exactly iit within the part A A, having also thetrapezoidal aperture D in the one sidethereof, and the extension C, ofthe same shape and size, on the opposite side.

I connect the parts A A and B B thus constructed, by the bolt and screw,or rivet, E, upon which they open and shut. Y

lVh'en the ring is closed, the trapezoidal extension Y D, of the part AA, fits in the similarly-shaped aperture D, of the part B B, formingthereby a' semi-dovetail, and the trapezoidal extension C, of the part BB, lits in the similarly-shaped aperture C, of the part AA, formingthereby another semi-dovetail.

When the ring is in use it appears as shown in fig. 1. When I desire touse the ring, I open it, as shown ing. 2, and insert the end O, of thepart A A, into the parts which I desire to connect, until these partsrest on the extension D, when I close the parts A A and B B,`and theparts connected slide to the opposite ends of the ring; or, I insert theend C, of the part A A, into. the one part until said part rests on theextension D, and insert the end. D, of the part B B, into the otherpart, until said part rests on the extension C, when, closing the part-sA A and B B, the connected parts slide from the extensions G an'd D tothe opposite ends of the ring.

, I am aware that Letters Patent have been granted vfor open or middlerings, formed by combinations somewhat similar to mine. I expresslydisclaim whatever combinations or inventions have been patented; andclaim that my ring is a new and useful improvement on all others- First,in that it is neat and compact, presenting,

Vwhen in use, as shown'iu iig. 1, a ring perfectly similar, in shape andsize, to the ordinary one.

Second,in that, by the trapezoidal apertures and ex! -the ring is usedin agriculture to connect the single and double-tree, by placing theextension D, of the part A A, against the frizon of the double-tree, theparts A A and B B will open suiciently, as shown in iig. 2, to removethe double-tree, without altering the position of or removing thesingleftree.

The nature and objectfof my invention are to fur- A nish a moreconvenient and easily-adj usted connectingmedium between any two thingswhich are usually connected by the common .ring or link; and it is animprovement, because it is easily removed andreplaced under allcircumstances, and is as strong. and pennanent when in use as the commonlink or ring.

It is applied in agriculture to connect the .singletree and double-treeof the wagon and the plow; to mend chains in which links or rings arebroken; to connect one chain with another, 85e.,

In general, it is designed to be applied and used in forming anyconnection, and for any purpose in which a ring or link is or can beused.

What I claim, and `desire to secure by Letters Patent of the UnitedStates, is

The oval or circular parts A A and B B, with the trapezoidal extensionsC and D, and the trapczoidal.

apertures C and D, and the rivet, or bolt and screw, E, connecting theparts A A and B B, all combined Iand operating in the manner and for thepurpose herein set forth.

BENJAMIN li.v ZINN.

Witnesses:

JOHN Q. ZINN, FRANK E. BnLTzHoovER.

